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One-Pot Synthesis of a Highly Active 3-Dimensional Fe-N-x-CNTs/rGO Composite Catalyst for Oxygen Reduction
Hu, Y; Yang, RO; Chen, HQ; Han, SB; Wang, JH; Wang, XJ; Deng, X; He, CH; He, QG; Jiang, Z; Gu, M
2019
Source PublicationCHEMELECTROCHEM
ISSN2196-0216
Volume6Issue:2Pages:504—513
Subtype期刊论文
AbstractA facile one-pot method to synthesize a Fe-N-x-CNTs/rGO catalyst by using melamine and FeCl2 center dot 4H(2)O as low-cost precursors is reported.The 3-dimensional porous structure and the dispersion of precursor were completed at the same time. Suitable precursor and concentration selection not only solved the aggregation of graphene but also improved its effective iron content and activity. The obtained catalysts exhibited oxygen reduction activitycomparable to commercial Pt/C with a half-wave potential (the potential when current density reaches the half of the diffusion-limited current density) at 0.875 V(vs. RHE) in alkaline media. In addition, it also showed a better stability than Pt/C with a lower decay of E-1/2 (10 mV) after 2000 cycles. From the systematic physical characterizations including aberration-corrected scanning transmission electron microscopy, Fe-57 Mossbauer spectroscopy and X-ray absorption spectroscopy, it was discovered that a unique structure with the coexistence of nitrogen-coordinated single iron atoms and Fe/Fe2C nanocrystals had been formed.
KeywordMETAL-FREE CATALYST CARBON NANOTUBES C CATALYSTS NITROGEN ELECTROCATALYSTS EFFICIENT NANOPARTICLES IDENTIFICATION PERFORMANCE CYANIDE
DOI10.1002/celc.201801240
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31740
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Zhejiang Univ, Coll Chem & Biol Engn, Zhejiang Prov Key Lab Adv Chem Engn Manufacture T, Hangzhou 310027, Zhejiang, Peoples R China;
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China;
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, 1088 Xueyuan Blvd, Shenzhen 518055, Guangdong, Peoples R China;
4.Chinese Acad Sci, Mossbauer Effect Data Ctr, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Hu, Y,Yang, RO,Chen, HQ,et al. One-Pot Synthesis of a Highly Active 3-Dimensional Fe-N-x-CNTs/rGO Composite Catalyst for Oxygen Reduction[J]. CHEMELECTROCHEM,2019,6(2):504—513.
APA Hu, Y.,Yang, RO.,Chen, HQ.,Han, SB.,Wang, JH.,...&Gu, M.(2019).One-Pot Synthesis of a Highly Active 3-Dimensional Fe-N-x-CNTs/rGO Composite Catalyst for Oxygen Reduction.CHEMELECTROCHEM,6(2),504—513.
MLA Hu, Y,et al."One-Pot Synthesis of a Highly Active 3-Dimensional Fe-N-x-CNTs/rGO Composite Catalyst for Oxygen Reduction".CHEMELECTROCHEM 6.2(2019):504—513.
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